Hypothetical black hole

Hypothetical black hole may refer to:


 * Micro black hole, a microscopic black hole proposed to have formed in the early universe
 * Intermediate mass black hole, a black hole of a mass between a stellar mass black hole and a supermassive black hole
 * Direct collapse black hole: a black hole formed from the collapse of hydrogen, rather than from a star
 * Primordial black hole, a black hole that might have formed in a similar fashion to a star during the Universe's earliest epochs
 * Extremal black hole, the smallest possible black hole that could exist while rotating at a specific speed
 * White hole, the opposite of a black hole; a white hole continuously expels matter